Gas cock and burner



June 26, 1934. P. s. HARPER 1,964,288

GAS COCK AND BURNER Fil ed June 13, 1930 2 Sheets-Sheet 1 k Rd? Jflmf W. ww w i June 26, 1934 5 HARPER 1,964,288

GAS COCK AND BURNER Patented June 26, 1934 UNITED STATES PATENT OFFICE (,AS COCK AND BURNER Philip S. Harper, Chicago, Ill,

Application June 13, 1930, Serial No. 460,825 22 Claims (01. 158-120) This invention consists of a double gas range cock having two nozzles combined with a double burner, said cock having a particularly advantageous arrangement of pone therein so as to provide improved functioning of such burner and cock.

This burner and cock are similar to my invention covered by my copending application Serial No. 267,223, filed April 4, 1928, which has resulted in Patent No. 1,836,242 issued December 15, 1931, but with the improvements thereon so that with the cock rotated in the farthest position from the off position, the full burner, or both sections,

have gas passing therethrough, whereas the small section is burning only, in an intermediate position of the handle. This improved type is simpler in operation, and is also cheaper inmanufacture than the previous invention mentioned wherein the full position and small section position are reversed from the present invention.

The object of this invention is to provide means whereby a double burner may be quickly turned in the off-direction from two sections burning toa single section burning.

Another object of this invention is to provide a gas cock of the type indicated wherein all ports in the casing of the cock register perfectly with all ports in the plug so that they may all be drilled without changing the position of the plug in the casing.

Another object of this invention is to provide a gas cock of the type indicated, which is cheaper to manufacture and which is still simpler in operation.

Another object of this invention is to provide a double gas cook with the operating handle and i both nozzles in a common plane.

These and other objects of my invention will be more apparent from the following description and from the drawings, in which Figure 1 is a plan view of a gas cock and burner of the type of my invention;

Figure 2 is a sectional plan of a gas cock and a partial sectional plan of a burner;

Figure 3 is a section of the cock alone, taken along the line 3--3 of Figure 2; and

Figure 4 is a sectional view of the cock taken along the line 44 of Figure 3.

Referring now to the drawings, in which like characters refer to like parts throughout, a manifold pipe 10 is shown into which is screwed a threaded end 11 of a gas cock body 12, said end having a passage 13 therein which terminates at the plug opening 14 in the gas cock body 12 and into which a tapered plug 15 is fitted with a round and well lubricated hearing as in the usual gas cock. The plug 15 has a transverse passage 16 therein which is the same size and exactly registers with the passage 13 in the body in the full open position of the plug as shown in all the drawings. A second transverse passage 17 in the plug 15 intersects the first passage 16 and is drilled at approximately a right angle to this first passage 16, (or some angle less than 180,the angle depending on the relative size of the plug and diameters of the ports). Also said passage is considerably larger than the first passage 16. for purposes to be disclosed. Said passage 1'7 registers with and is the same size as passage 18 in an arm 19 of the casing 12, and said passage 18 is closed at its end by a suitable plug 20. Another passage 21 connects with this passage 18,, extending through a threaded projection 22, and

in this projection 22 there is pressed a needle 23.

A hood 24 having a central orifice 25 therein is screwed on the threaded projection 22, and the beforementioned needle 23 enters the orifice 25 more or less depending on the amount said hood 24 is screwed up on the projection 22, the whole constituting an adjustable orifice as commonly 8 used in gas range cocks.

Returning now to the plug receiving passage 14 in the casing, a passage 26 leads ofi therefrom into a second threaded projection 27 having a needle 28 pressed therein and a hood 29 with an orifice 30 screwed thereon, the whole forming a; second adjustable orifice similar in construction to that first described, except that orifice 30 is smaller than 25. The plug 15 has a passage 31 axially therethrough for conducting gas to this last described hood 29 and orifice 30.

The upper end of the plug 15 has an extension 40 which extends through a coil spring 42, and a nut 43 which is screwed onto the body 12 at point 44, the spring in this assembly being compressed by the nut 43 against the shoulder '45 on the plug 15, thus serving to hold said plug firmly seated on the bearing surface 14. A stop pin 46 is pressed into said plug as shown, and said pin operates against a projection 47 on the body 12, said projection determining and limiting the number of degrees of possible rotation of said plug 15.

The extension 40 has fastened on the outer end a handle 48 by means of a screw 49, said handle 1 5 pointing in an upward direction with the ports in the gas cock in full open position, as shown.

In the gas cook described, the diameter of the plug 15 and the size of ports 16 and 1'7 are all such that the distance a: is slightly greater than the diameter of the larger port 17, for purposes of operation to be disclosed.

Referring now to Figure 1, the hoods 24 and 29 each project respectively into mixing tubes 50 and 51 in burner casting 52. Said tubes each have air shutters 53 as shown in my copending application, Serial No. 460,827, filed June 13, 1930, and saidtubes lead respectively to burner sections 54 and 55 (shown in dotted lines). These sections have burner ports 56 and 5''! in the top thereof arranged within the area covered by the usual cooking vessel.

As to the operation of my invention, with the valve in wide open position as shown, it is seen that there is a free flow of gas to both orifices 25 and 30 and consequently to both sections of the burner 54 and 55. On turning the plug 15 in a clockwise direction, it can be seen that when passage 16 is nearly cut off, passage 17 is still open to a considerable extent, so that free flow of the small amount of gas is allowed that is passing through the small opening of the passage 16. The passage 31 also allows free flow of gas, and consequently as passage 16 is closed oil, gas flow to both orifices 25 and 30 is cut off in like degree, consequently the entire burner is cut down to a uniform or frying heat. Further turning of the plug 15 in a clockwise direction cuts off passage 13 and 16 entirely, and passage 13 remains closed until passage 1'7 comes in register therewith; and due to the distance x being greater than the diameter of passages 1'7 and 18, the passage 18 closes before passage 1'! registers with passage 13. It is seen that during this period of turning, gas to the entire burner has been cut off, but the gas remains lighted on the small section with reasonable speed of turning for reasons as disclosed in my copending application Serial No. 267,223, filed April 4, 1928, which has resulted in Patent No. 1,836,242 issued December 15, 1931.

Further turiiing to a horizontal position of the handle 48 brings the simmer burner on for full flow due to full register of passage 17 with passage 13, and still further turning of the valve lowers the gas to orifice 30 and simmer section 55 as required in the operation of a double burner; still further turning cuts all gas off to the burner at which time the pin 46 properly engages the stop means 47.

While I have described more or less precisely the details of construction, I do not wish to be understood as limiting myself thereto, as I contemplate changes in form and the proportion of parts and the substitution of equivalents as circumstances may suggest or render expedient without departing from the spirit or scope of my invention.

I claim:

1. In combination with a double gas range burner having two mixing tubes, each of said mixing tubes leading to a separate burner section having burner ports therein, said burner ports in said sections being arranged within the area of the usual cooking vessel, a gas cook having a casing with two gas nozzles thereon, each projecting into one of the aforesaid mixing tubes, said casing having a rotatable plug bearing therein, said casing having a passageway extending into said plug and meeting therein two additional passageways each continuing through said plug and casing and each leading to one of said gas nozzles, two of said passages in said casing entering the bearing surface between said plug and said casing, the circumferential distance in the bearing surface between said two passages being appreciably greater around one. side of said plug than around the other.

2. In combination with a double gas range burner having two mixing tubes therein, each of said mixing tubes leading to a separate burner section having burner ports therein, said ports in said sections being arranged within the area of the usual cooking vessel, a manifold pipe, a gas cock having a casing with two gas nozzles thereon, each projecting into one of the aforesaid mixing tubes, said casing having a rotatable plug bearing therein, said plug and said casing having passages therein leading to said nozzles, one of said nozzles being offset laterally from the other, said casing having a passage leading eventually to said offset nozzle, said passage for an appreciable part of its length running substantially parallel with the axis of said manifold.

3. In combination with a double gas range burner having two mixing tubes, each leading to a separate burner section having burner ports therein, a gas cock having a casing with two nozzles thereon, one projecting into each of said mixing tubes, said casing having a rotatable plug bearing therein, said casing having two passages leading to the bearing surface between said plug and said casing, the circumferential distance at the bearing surface between said passages being substantially greater around one side of said plug than around the other, said passages registering at least partially with passages in said plug with said plug in one rotary position, both latter passages in said plug communicating with a passage extending in an axial direction in said plug.

4. A gas manifold pipe, a gas cock-fastened thereto, said cock having two gas nozzles each projecting into a gas burner, an operating stem on said cock, and passages in said cock leading from said manifold to said nozzles, the axes of said nozzles and the axis of said stembeing positioned in a common plane substantially parallel to the axis of said manifold pipe.

5. In combination with a double gas range burner having two mixing tubes, each or" said mixing tubes leading to a separate burner section having burner ports therein, said burner ports in said sections being arranged within the area of the usual cooking vessel, a gas cock having a casing with two gas nozzles thereon, each projecting into one of the aforesaid mixing tubes, said casing having a rotatable plug bearing therein, said casing having a passageway extending into said plug and meeting therein two additional passageways each continuing through said plug and casing and each leading to one of said gas nozzles, two of said passages in said casing entering the bearing surface between said plug and said casing, the angle of one of said latter two passages in said casing being less than 180 degrees from the other, each of said two passages in said plug exactly registering with a corresponding passage in said casing in a single rotary position of said plug, and each of said passages in said plug being the same diameter as the passage with which it registers in the casing.

6. In combination with a double gas range burner having two mixing tubes, each of said mixing tubes leading to a separate burner section having burner ports therein, said burner ports in said sections being arranged within the area of the usual cooking vessel, a gas cook having a casing with two gas nozzles thereon, each projecting into one of the aforesaid mixing tubes, said casing having a rotatable plug bearing therein, said casing having a passageway extending into said plug and meeting therein two additional passageways each continuing through said plug and casing and each leading to one of said gas nozzles, two of said passages in said casing enterin; the bearing surface between said plug and said casing, the angle of one of said latter two passages in said casing being less than 180 degrees from the other, one of said two passages being larger than the other, each of said two passages in said plug exactly registering with and corresponding in diameter with a corresponding passage in said casing in a single rotary position of said plug.

7. A gas cock having a casing and a rotatable member seated therein, two nozzles and a manifold end on said casing, said end having a passage therein extending into said rotatable member and intercepting a second passage at less than 180 degrees to said first passage, said second passage extending through the bearing surface and into said casing and having its end closed by a means separate from said casing, and having a third passage connecting thereto and leading to one of said nozzles, and said parts having a fourth passage leading to the other of said nozzles.

8. In combination with a double gas range burner having two mixing tubes laterally displaced the one from the other, each of said mixing tubes leading to a separate burner section, said sections being arranged within the area of the usual cooking vessel, a gas valve having a casing with two gas nozzles thereon, each projecting into one of the aforesaid mixing tubes, said casing having a rotatable valve member in bearing therewith, said rotatable valve member being positioned so as to be intersected by a plane common to the axes of said two mixing tubes, and said casing having passages leading to said nozzles.

9. A gas valve having a casing with two nozzles thereon, each of said nozzles having a restricted orifice therein, said casing having a rotary valve member bearing therewith on a lubricated bearing surface, one of said orifices being in a vertical plane parallel with the axis of said valve member and intersecting said valve member, the other of said orifices being in a vertical plane parallel with the axis of said valve member and laterally offset therefrom.

10. A gas cock having a casing with two nozzles thereon, a rotatable plug seated therein, said casing having a manifold end with a passage therein extendinginto said plug and meeting therein a second passage extending into said casing, said casing having a third passage connecting with said second passage and with one of said nozzles, said first passage being substantially perpendicular to said second passagerand to said third passage, and said second passage being sub-' stantially perpendicular to said third passage.

11. A gas valve having a casing with at least one nozzle thereon, said nozzle having a restricted orifice therein, said casing having a 1'0- tary valve member in bearing therewith on a lubricated bearing surface, said casing having a passage from a source of gas supply leading to said bearing surface and registering with a first passage in said valve member with said member in one rotary position, said first passage in said valve member connecting with a second passage in said valve member leading to said bearing surface, the opening of said second passage into the bearing surface of said valve member being wholly to one side of a plane through the rotary axis of said valve member and through the center of the opening of said first passage in said valve member into said bearing surface; said first and said second passages in said rotary member being sealed from direct internal connection with the bearing surface of said rotary member around the longer circumferential distance between the openings to the bearing surface of said first and said second passages in said rotary member, said valve having stops permitting the rotation of said valve member of appreciably more than ninety degrees, said stops being placed whereby either said opening of said first passage or the opening of said second passage in the bearing surface of said rotary valve member at least partially registers in different rotary positions of said rotary valve member with the opening into the bearing surface of said passage in said casing.

12. A gas valve having a casing with at least one nozzle thereon, said nozzle having a restricted orifice therein, said casing having a rotary valve member in bearing therewith on a lubricated bearing surface, said casing having apassage from a source of gas supply leading to said bearing surface and registering with a first passage in said valve member with said member in one rotary position, said first passage in said valve member connecting with a second passage in said valve member leading to said bearing surface, the opening of said second passage into the bearing surface of said valve member being wholly to one side of a plane through the rotary axis of said valve member and through the center of the opening of said first passage in said valve member into said bearing surface, said first and said second passages in said rotary member being sealed from direct internal connection with the bearing surface of said rotary member around the longer circumferential distance between the openings to the bearing surface of said first and said second passages in said rotary member, said valve having stops permitting the rotation of said valve mem-- ber of appreciably more than ninety degrees, said stops being placed whereby either said opening of said first passage or the opening of said second'passage in the bearing surface of said rotary valve member has means of connection in different rotary positions. of saidrot'ary valve member with said passage in said casing from a source of gas supply, said rotary memberhaving a third passage connecting to said first and second passages in said valve member, at least one of said passages in said valve being connected with said nozzle. r

13. A gas valve having a casing with at least one nozzle thereon, said nozzle having a restricted orifice therein, said casing having a ro- -tary valve member in bearing therewith on a lubricated bearing surface, said casing hav'nga passage from a source of gas supply leading to said bearing surface and registering with a first passage in said valve member with said member in one rotary position, said first passage in said valve member connecting with a second passage in said valve member leading to said bearing surface, the opening of said second passage into the bearing surface of said valve member being wholly to one side of a plane through the rotary axis of said valve member and through the center of the opening of said first passage in said valve member into said bearing surface, said first and said second passages in said rotary member being sealed from direct internal connection with the bearing surface of said rotary member around the longer circumferential distance between the openings to the bearing surface of said first and said second passages in said rotary member, said valve having stops permitting the rotation of said valve member of appreciably more than ninety degrees, said stops being placed whereby either said opening of said first passage or the opening of said mend passage in the bearing surface of said rotary valve member at least partially register in different rotary positions of said rotary valve member with the opening into the bearing surface of said passage in said casing, said rotary member having a third passage extending at least partially in an axial direction in said member, said third passage having means of connection with said first and second passages in said rotary member, said parts having passage means connecting said nozzle with said three passages in said rotary member.

14. A gas valve having a casing with two nozzles thereon, said nozzles each having a restricted orifice therein, said casing having a rotary valve member in bearing therewith on a lubricated bearing surface, said casing having a first passage from a source of gas supply leading to said bearing surface and registering with a first passage in said valve member in one rotary position of said valve member, said first passage in said valve member connecting with a second passage in said valve member leading to said bearing surface and registering in the same rotary position of said valve member with a second passage in said casing, the opening of said second passage in said valve member into the bearing surface and the opening of said second passage in said casing into said bearing surface each being whol- 1y to one side of a plane through the axis of rotation of said valve member and through the center of the opening of the first passage in the respective part into the bearing surface, and stops limiting rotation of said rotary member, said stops permitting in different rotary positions of said valve member the opening into the bearing surface of either the first or second passages in said rotary member to at least partially register with the opening into the bearing surface of the first passage in said casing.

15. A gas valve having a casing with two nozzles thereon, said nozzles each having a restricted orifice therein, said casing having a rotary valve member in bearing therewith on a lubricated bearing surface, said casing having a first passage from a source of gas supply leading to sa'd bearing surface and registering with a first passage in said valve member in one rotary position of said valve member, said first passage in said valve member connecting with a second passage in said valve member leading to said bearing surface and registering in the same rotary position of said valve member with a second passage in said casing, the opening of said second passage in said valve member into the bearing surface and the opening of said second passage in said easing into said bearing surface each being wholly to one side of a plane through the axis of rotation of said valve member and through the center of the opening of the first passage in the respective part into the bearing surface, and stops limiting rotation of said rotary member, said stops permitting in different rotary positions of said valve member the opening into the bearing surface of either the first or second passages in said rotary member to at least partially register with the opening into the bearing surface of the first passage in said casing, said second passage in said casing leading to one of said nozzles, and said rotary valve member having an additional passage connecting with passage means in said casing and leading to the other of said nozzles.

16. A gas valve having a casing with two nozzles thereon, said nozzles each having a restricted orifice therein, said casing having a rotary valve member in bearing therewith on a lubricated bearing surface, said casing having a first passage from a source of gas supply leading to said bearing surface and registering with a first passage in said valve member in one rotary position of said valve member, said first passage in said valve member connecting with a second passage in said valve member leading to said bearing surface and registering in the same rotary position of said valve member with a second passage in said casing, the opening of said second passage in said valve member into the bearing surface and the opening of said second passage in said casing into said bearing surface each being wholly to one side of a plane through the axis of rotation of said valve member and through the center of the opening of the first passage in the respective part into the bearing surface, and stops limiting rotation of said rotary member, said stops permitting in different rotary positions of said valve member the opening into the bearing surface of either the first or second passages in said rotary member to at least partially register with the opening into the bearing surface of the first passage in said casing, the combined circumferential length of the openings into the bearing surface of the two first passages being appreciably smaller than the combined circumferential length of the openings into the bearing surface of the second two passages, said second passage in said casing leading to one of said nozzles, and said rotary valve member having an additional passage connecting with passage means in said casing and leading to the other of said nozzles.

17. A gas cock having a casing with a rotatable plug in bearing therewith on a lubricated bearing surface, stops limiting the rotation of said plug to not less than 105 degrees, a gas nozzle attached to said casing, said casing having a passage therein from a source of gas supply, said passage extending through the bearing surface and into said plug, said plug having a circumferential bearing surface of at least 180 degrees sealed from said extending passage in all planes passing through said passage and perpendicular to the z axis of said plug, said parts having additional passage means connecting said passage extending into said plug with said nozzle.

18. A gas cook having a casing with a rotatable plug in bearing therewith on a lubricated bearing surface, stops limiting the rotation of said plug to not less than 105 degrees, a gas nozzle attached to said casing, said casing having a passage therein from a source of gas supply, said passage extending through the bearing surface and into said plug with said plug in one rotary position, said casing having in all rotary positions of said plug with stops disengaged a circumferential bearing surface of at least 180 degrees sealed from said extending 'passage in all planes passing through said passage and perpendicular to the axis of said plug, said parts having additional passage means connecting said passage extending into said plug with said nozzle.

19. A gas valve having a casing with a rotatreeaees able valve member in bearing therewith, on a dill lubricated bearing surface, stops limiting the rotation of said member to not less than 105 degrees, a gas nozzle attached to said casing, said casing having a passage therein from asource of gas supply, said passage extending through the bearing surface and into said rotatable member, said rotatable member having a circumferential bearing surface or at least 130 degrees sealed from said extending passage around the path of rotation of the opening of aforesaid passage in the bearing surface of said rotatable member, said parts having additional passage means connecting said nozzle with said passage in said rotatable member.

20. A gas cock having a casing with a rotatable plug in bearing therewith on a lubricated bearing surface, stops limiting therotation of said plug to not less than 105 degrees, a plurality of gas nozzles attached to said casing, said casing having a passage therein from a source of gas supply, said passage extending through the bearing surface and into said plug with said plug in one rotary position, said casing having in all rotary positions of said plug with stops disengaged a circumferential bearing surface of at least 180 degrees sealed from said extending passage in all planes passing through said passage and perpendicular to the axis of said plug, said parts having additional passage means connecting said passage extending into said plug with said nozzles.

21. A gas valve having a casing with a rotatable valve member in bearing therewith, on a lubricated bearing surface, stops limiting the rotation of said member to not less than 105 degrees, a plurality of gas nozzles attached to said casing; said casing having a passage therein from a source of gas supply, said passage extending through the bearing surface and into said rotatable member, said casing having a circumferential bearing surface of at least 180 degrees sealed from said extending passage around the path of rotation of the opening of aforesaid passage in the bearing surface of said rotatable member, said parts having additional passage means connecting said nozzles with said passage in said rotatable member.

22. A gas valve having a casing with at least one nozzle thereon, said nozzle having a restricted orifice therein, said casing having a rotary valve member in bearing therewith, said valve member having passage means therein, said casing having a passage from a source of gas supply leading to said bearing surface and registering with a passage in said valve member, stops limiting the rotation of said valve member to substantially 180, one of said stops being engaged in the position of registering of said passage in said casing with said passage in said rotary memher, said passage in said rotary member connecting with a passage in said casing leading to said nozzle, said passage in said rotary member having an appreciable 'change in direction before connecting with said passage in said casing leading to said nozzle. PHILIP S. HARPER. 

